package com.klun.hdfs.hd.driver;


import com.klun.hdfs.hd.inputformat.WholeInputFormat;
import com.klun.hdfs.hd.mapper.SequenceFileMapper;
import com.klun.hdfs.hd.reducer.SequenceFileReducer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.BytesWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat;

import java.io.IOException;

public class SequenceFileDriver {

    public static void main(String[] args) throws IOException, ClassNotFoundException, InterruptedException {
        args = new String[] {"E:\\input","E:\\output"};
        Configuration conf = new Configuration();

        Job job = Job.getInstance(conf);
        job.setJarByClass(SequenceFileDriver.class);
        job.setMapperClass(SequenceFileMapper.class);
        job.setReducerClass(SequenceFileReducer.class);

        //job.setPartitionerClass(ProvincePartitioner.class);

        job.setInputFormatClass(WholeInputFormat.class);
        job.setOutputFormatClass(SequenceFileOutputFormat.class);

        job.setMapOutputKeyClass(Text.class);
        job.setMapOutputValueClass(BytesWritable.class);

        job.setOutputKeyClass(Text.class);
        job.setOutputValueClass(BytesWritable.class);

        FileInputFormat.setInputPaths(job,new Path(args[0]));
        FileOutputFormat.setOutputPath(job,new Path(args[1]));

        boolean b = job.waitForCompletion(true);
        System.exit(b?0:1);
    }
}
